Senior Backend Engineer

Company Description

Blend is a premier AI services provider, committed to co-creating meaningful impact for its clients through the power of data science, AI, technology, and people. With a mission to fuel bold visions, Blend tackles significant challenges by seamlessly aligning human expertise with artificial intelligence. The company is dedicated to unlocking value and fostering innovation for its clients by harnessing world-class people and data-driven strategy. We believe that the power of people and AI can have a meaningful impact on your world, creating more fulfilling work and projects for our people and clients. For more information, visit

What is this position about?

We are looking for a Senior Backend Engineer with experience in Python, FastAPI, and AWS. The role involves designing and implementing backend systems that integrate with LLM-based architectures, Agentic Frameworks, and RAG systems. The ideal candidate is a technical leader capable of collaborating across teams and aligning backend strategy with client goals.

Job Description

• Engage with client stakeholders to gather requirements and present effective backend solutions.
• Break down complex initiatives into smaller, actionable tasks to efficiently drive technical objectives.
• Collaborate with multiple teams (internal and client) to ensure smooth interoperability and delivery.
• Contribute to architectural discussions and lead technical design efforts for scalable backend systems.
• Develop and maintain backend services using Python (FastAPI) integrated with AWS infrastructure.
• Implement and manage workflows and pipelines using Airflow and Snowflake.
• Participate in the development of AI-driven systems, including LLM integrations and RAG frameworks.
• Ensure code quality, reliability, and performance across distributed systems.

Qualifications

• Strong proficiency in Python and experience building APIs with FastAPI.
• Proven experience with AWS cloud services.
• Familiarity with Airflow, Snowflake, and LLM/AI-related frameworks (Agentic or RAG systems).
• Excellent organizational and coordination skills across multiple teams and stakeholders.
• Solid understanding of software architecture and scalable system design.
• Strong communication skills with the ability to translate technical concepts to non-technical audiences.
• AI-related project experience is a strong plus.

What about languages?

You will need excellent written and verbal English for clear and effective communication with the team.

How much experience must I have?

Minimum 5 years of experience in backend development.

Additional Information

Our Perks and Benefits:

Learning Opportunities:

• Certifications in AWS (we are AWS Partners), Databricks, and Snowflake.
• Access to AI learning paths to stay up to date with the latest technologies.
• Study plans, courses, and additional certifications tailored to your role.
• Access to Udemy Business, offering thousands of courses to boost your technical and soft skills.
• English lessons to support your professional communication.

Mentoring and Development:

• Career development plans and mentorship programs to help shape your path.

Celebrations & Support:

• Special day rewards to celebrate birthdays, work anniversaries, and other personal milestones.
• Company-provided equipment.

Flexible working options to help you strike the right balance.

Other benefits may vary according to your location in LATAM. For detailed information regarding the benefits applicable to your specific location, please consult with one of our recruiters.

So what are the next steps?

Our team is eager to learn about you Send us your resume or LinkedIn profile below and we'll explore working together

At Blend, we offer a dynamic and inclusive work environment, where diversity of thought and background is valued and encouraged. Our employees enjoy benefits such as flexible work arrangements, continuous learning opportunities, and a culture that fosters innovation and career growth. If you're ready to make an impact through meaningful work powered by AI, we invite you to join our team.